Keto Taco Casserole Cheesy (Printable Version)

A savory low-carb casserole featuring ground beef, cauliflower rice, and melted cheese topping.

# What You’ll Need:

→ Meat & Protein

01 - 1 lb ground beef (85% lean)
02 - 1 tbsp olive oil

→ Vegetables

03 - 1 medium onion, finely chopped
04 - 2 cloves garlic, minced
05 - 1 bell pepper (red or green), diced
06 - 3 cups riced cauliflower (fresh or frozen)
07 - 1 can (10 oz) diced tomatoes with green chilies, drained

→ Seasonings

08 - 2 tbsp sugar-free taco seasoning
09 - ½ tsp salt
10 - ¼ tsp black pepper

→ Dairy

11 - 1 cup shredded cheddar cheese
12 - 1 cup shredded Monterey Jack cheese
13 - ½ cup sour cream

→ Optional Toppings

14 - Sliced green onions
15 - Chopped cilantro
16 - Diced avocado

# Method:

01 - Preheat the oven to 375°F.
02 - Heat olive oil in a large skillet over medium heat. Add the onion and bell pepper, sauté for 3–4 minutes until softened.
03 - Add garlic and cook for 1 minute until fragrant.
04 - Add ground beef and cook, breaking up the meat, until browned and cooked through—about 5–6 minutes. Drain excess fat if necessary.
05 - Stir in taco seasoning, salt, pepper, and diced tomatoes with green chilies. Cook for 2 minutes.
06 - Add riced cauliflower and cook for another 3–4 minutes until just tender. Remove from heat.
07 - Stir in half of the cheddar and Monterey Jack cheeses, and the sour cream until well combined.
08 - Transfer the mixture to a greased 9x13-inch casserole dish. Sprinkle the remaining cheeses evenly over the top.
09 - Bake for 15–18 minutes, or until the cheese is melted and bubbly.
10 - Let cool for 5 minutes. Garnish with green onions, cilantro, and avocado if desired. Serve hot.

# Expert Hints:

01 -
  • Perfect for meal prep - keeps well for days in the refrigerator
  • Family-friendly dish that satisfies both keto dieters and carb-lovers
  • One-pan meal that minimizes cleanup
  • Customizable with your favorite taco toppings
  • Rich in protein and healthy fats while low in carbs
02 -
  • For best results, drain the tomatoes well to prevent a watery casserole
  • Squeeze excess moisture from thawed frozen cauliflower rice before adding to the skillet
  • Let the casserole rest for 5-10 minutes after baking to set up properly
  • Use a block of cheese and grate it yourself for better melting properties
  • Store leftovers in individual portions for easy keto-friendly lunches
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